The Geysers

The Geysers, a geothermal power field located 72 miles (116 km) north of San Francisco, California, is the largest geothermal development in the world. It is currently outputting over 750 MW. The Geysers consists of 22 separate power plants that utilize steam from more than 350 producing wells. cite web
title = Calpine Corporation - The Geysers
url = http://www.geysers.com
format = http
accessdate = 2008-06-11
] The Calpine Corporation operates and owns 19 of the 22 facilities. The other three facilities are operated by the Northern California Power Agency and the Western GeoPower Corporation.

Description

The Geysers geothermal development spans an area of around 30 square miles (78 km²) in Sonoma and Lake counties in California, located in the Mayacamas Mountains. Power from The Geysers provides electricity to Sonoma, Lake, Mendocino, Marin, and Napa counties. It is estimated that the development meets 60 percent of the power demand for the coastal region between the Golden Gate Bridge and the Oregon state line.

Steam used at the Geysers is produced from a greywacke sandstone reservoir, that is capped by a heterogeneous mix of low permeability rocks and underlaid by a Felsite intrusion. [http://www.osti.gov/geothermal/servlets/purl/887486-8h0FCj/887486.pdf RESERVOIR RESPONSE TO INJECTION IN THE SOUTHEAST GEYSERS] , 1991 (pdf) Steve Enedy, Kathy Enedy, John Maney, Sixteenth Workshop on Geothermal Reservoir Engineering 1991. (accessed 2007-05-16)] Gravity and seismic studies suggest that the source of heat for the steam reservoir is a large magma chamber over 4 miles (7 km) beneath the ground, and greater than 8 miles (14 km) in diameter. cite web
title = Cascades Volcanic Observatory (USGS) - Clear Lake Volcanic Field, California
url = http://vulcan.wr.usgs.gov/Volcanoes/California/ClearLake/description_clear_lake.html
format = http
accessdate = 2007-05-16
]

Unlike most geothermal resources, the Geysers is a dry steam field, which means it mainly produces superheated steam. Because the power plant turbines require a vapor phase input, dry steam resources are generally preferable. Otherwise, a two-phase separator is required between the turbine and the geothermal wells to remove condensation that is produced with the steam.

History

The first recorded "discovery" of The Geysers was in 1847 during John Fremont's survey of the Sierra Mountains and the Great Basin by William Bell Elliot. Elliot called the area "The Geysers," although the geothermal features he discovered were not technically geysers, but fumaroles. Soon after, in 1852, The Geysers was developed into a spa for The Geysers Resort Hotel, which attracted the likes of Ulysses S. Grant, Theodore Roosevelt, and Mark Twain.cite web
title = A History of Geothermal Energy in the United States
url = http://www1.eere.energy.gov/geothermal/history.html
format = http
accessdate = 2007-05-17
]

ee also

*Geothermal energy in the United States
*Geothermal power

References

External links

* [http://www.prnewswire.com/cgi-bin/stories.pl?ACCT=104&STORY=/www/story/08-15-2007/0004646167&EDATE= Calpine to Increase Renewable Energy Production at The Geysers; Calpine and Santa Rosa to Expand Geysers Recharge Project]
* [http://pasadena.wr.usgs.gov/recenteqs/Maps/123-39.htm USGS map of frequent earthquakes in the Geyser area]


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • The Geysers — West Ford Flat, une des tours de refroidissement de The Geysers …   Wikipédia en Français

  • The Blue and the Gray — Infobox Television Film name = The Blue and the Gray caption = format = Historical, drama runtime = 296 min (Recut 2005 Version) / 381 min (Original 1982 Version) creator = starring = John Hammond Stacey Keach Lloyd Bridges Gregory Peck country …   Wikipedia

  • The Dome Leisure Centre — The Dome Doncaster Dome Location The Dome Doncaster Leisure Park Bawtry Road Doncaster DN4 7PD England Opened 26 November 1989 Owner Doncaster Metropolitan Borough Council …   Wikipedia

  • The Delano Orchestra — Pays d’origine Clermont Ferrand, France Genre musical Folk Rock Pop Post Rock Ambient Ann …   Wikipédia en Français

  • The Three Buddhas — are a trio of hot springs geysers in the state of Nevada, named for their peculiar resemblance to statues of the Buddha. They are sited on the Fly Ranch near the town of Gerlach.External links* [http://serc.carleton.edu/microbelife/microbservatori… …   Wikipedia

  • The Great Escape & Splashwater Kingdom — Infobox Amusement park name = Six Flags The Great Escape Splashwater Kingdom location = Queensbury, New York (Advertised as in Lake George, New York) area = approximately 150 acres opening date = 1954 previous names = Storytown USA , The Great… …   Wikipedia

  • The Ocean Blue — Ocean Blue redirects here. For the ABC song, see Ocean Blue (song). The Ocean Blue Origin Hershey, Pennsylvania, USA Genres Indie pop, Dream pop, Jangle pop, New Wave Years active 198 …   Wikipedia

  • The Villas at Disney's Wilderness Lodge — Disney DVC infobox name = The Villas at Disney s Wilderness Lodge location = Magic Kingdom Resort Area opendate = November 15, 2000 theme = Pacific Northwest sections = Villas roomnumber = 136 suite = None address = 901 West Timberline Drive Lake …   Wikipedia

  • The Blue and The Gray — Seriendaten Originaltitel: The Blue and the Gray Produktionsland: USA Produktionsjahr(e): 1982 Originalsprache: Englisch Idee: Bruce Catton Genre …   Deutsch Wikipedia

  • geysers — gey·ser || gaɪzÉ™(r) / gɪːz n. natural hot spring that periodically sprays a fountain of water and steam into the air; hot water heater (British) …   English contemporary dictionary


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.